1.
Thoschuay R. A Study of Development Model of Open Approach Activities on the European Continent of Mathayomsuksa 2 Students. IARJ [internet]. 2022 Aug. 13 [cited 2026 Sep. 11];2(4):365-78. available from: https://so03.tci-thaijo.org/index.php/IARJ/article/view/262422